Officer of the Order of Canada

• Awarded on: April 17, 2025
• Invested on: September 18, 2025

Donald William Hayley, O.C.
Peachland, British Columbia

Donald Hayley is one of Canada’s leading permafrost engineers. A cold region geotechnical expert, he has contributed to the development of the Canadian Arctic, which has benefited communities and the economy. His groundbreaking innovations include sloped thermosyphons, Canada’s first frozen core dam, and the design and construction of safer winter ice roads.